Can anyone tell me the "correct" plating color to be applied to the bolt that connects the J52 power brake balance valve to its bracket?I've seen it done many ways. I'm betting only one way was correct.

This bracket mounts directly under the master cylinder on disc brake Camaros. This is the little gem of a bracket:

This photo may only help a little. It was taken last year at the Camaro Nationals of a 12,000 mile unrestored 69 SS396 375HP Garnet Red coupe. From the photo all you can say for sure is that it wasn't black phosphate. I can't tell if it was silver or gold cad. Maybe you can! I have other photos, but unfortunately none show this bracket and bolt any better

Went ahead and dug them up now. Here is the pic. The bolt on the left is the one that holds the "L" bracket to the metering block. Dark Phosphate. The one on the right is the one you are asking about. Silver cad.

This is an old thread. I thought my bracket was damaged that holds the metering valve but Johns looks exactly the same with that odd stamp in the top of it. I was hoping to find a new bolt since mine is pitted but I guess no one has this bolt. I checked amk and heartbeat city and neither show it.Part number 3848408

I have that same indent too on my 67 brackets. I'll look for that bolt style with the captive star washer tomorrow in my bolt collection. If I have it, it's yours free. As a side note, my bolt head isn't indented like John's 69. It has a flat surface with 3 lines and 'RS' and is dark phosphate. I'm sure they must have used different styles. I'll check tomorrow morning.